projects / mirror_qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| 2f949398 JQ |
1 | /* |
| 2 | * Virtio scsi PCI Bindings | |
| 3 | * | |
| 4 | * Copyright IBM, Corp. 2007 | |
| 5 | * Copyright (c) 2009 CodeSourcery | |
| 6 | * | |
| 7 | * Authors: | |
| 8 | * Anthony Liguori <aliguori@us.ibm.com> | |
| 9 | * Paul Brook <paul@codesourcery.com> | |
| 10 | * | |
| 11 | * This work is licensed under the terms of the GNU GPL, version 2 or | |
| 12 | * (at your option) any later version. See the COPYING file in the | |
| 13 | * top-level directory. | |
| 14 | */ | |
| 15 | ||
| 16 | #include "qemu/osdep.h" | |
| 17 | ||
| 18 | #include "hw/virtio/virtio-scsi.h" | |
| 0b8fa32f | 19 | #include "qemu/module.h" |
| 2f949398 JQ |
20 | #include "virtio-pci.h" |
| 21 | ||
| 22 | typedef struct VirtIOSCSIPCI VirtIOSCSIPCI; | |
| 23 | ||
| 24 | /* | |
| 25 | * virtio-scsi-pci: This extends VirtioPCIProxy. | |
| 26 | */ | |
| 27 | #define TYPE_VIRTIO_SCSI_PCI "virtio-scsi-pci-base" | |
| 28 | #define VIRTIO_SCSI_PCI(obj) \ | |
| 29 | OBJECT_CHECK(VirtIOSCSIPCI, (obj), TYPE_VIRTIO_SCSI_PCI) | |
| 30 | ||
| 31 | struct VirtIOSCSIPCI { | |
| 32 | VirtIOPCIProxy parent_obj; | |
| 33 | VirtIOSCSI vdev; | |
| 34 | }; | |
| 35 | ||
| 36 | static Property virtio_scsi_pci_properties[] = { | |
| 37 | DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, | |
| 38 | VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), | |
| 39 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, | |
| 40 | DEV_NVECTORS_UNSPECIFIED), | |
| 41 | DEFINE_PROP_END_OF_LIST(), | |
| 42 | }; | |
| 43 | ||
| 44 | static void virtio_scsi_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) | |
| 45 | { | |
| 46 | VirtIOSCSIPCI *dev = VIRTIO_SCSI_PCI(vpci_dev); | |
| 47 | DeviceState *vdev = DEVICE(&dev->vdev); | |
| 48 | VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(vdev); | |
| 49 | DeviceState *proxy = DEVICE(vpci_dev); | |
| 50 | char *bus_name; | |
| 51 | ||
| 52 | if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) { | |
| 53 | vpci_dev->nvectors = vs->conf.num_queues + 3; | |
| 54 | } | |
| 55 | ||
| 56 | /* | |
| 57 | * For command line compatibility, this sets the virtio-scsi-device bus | |
| 58 | * name as before. | |
| 59 | */ | |
| 60 | if (proxy->id) { | |
| 61 | bus_name = g_strdup_printf("%s.0", proxy->id); | |
| 62 | virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); | |
| 63 | g_free(bus_name); | |
| 64 | } | |
| 65 | ||
| 66 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); | |
| 67 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); | |
| 68 | } | |
| 69 | ||
| 70 | static void virtio_scsi_pci_class_init(ObjectClass *klass, void *data) | |
| 71 | { | |
| 72 | DeviceClass *dc = DEVICE_CLASS(klass); | |
| 73 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
| 74 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
| 75 | ||
| 76 | k->realize = virtio_scsi_pci_realize; | |
| 77 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); | |
| 78 | dc->props = virtio_scsi_pci_properties; | |
| 79 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
| 80 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_SCSI; | |
| 81 | pcidev_k->revision = 0x00; | |
| 82 | pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI; | |
| 83 | } | |
| 84 | ||
| 85 | static void virtio_scsi_pci_instance_init(Object *obj) | |
| 86 | { | |
| 87 | VirtIOSCSIPCI *dev = VIRTIO_SCSI_PCI(obj); | |
| 88 | ||
| 89 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
| 90 | TYPE_VIRTIO_SCSI); | |
| 91 | } | |
| 92 | ||
| 93 | static const VirtioPCIDeviceTypeInfo virtio_scsi_pci_info = { | |
| 94 | .base_name = TYPE_VIRTIO_SCSI_PCI, | |
| 95 | .generic_name = "virtio-scsi-pci", | |
| 96 | .transitional_name = "virtio-scsi-pci-transitional", | |
| 97 | .non_transitional_name = "virtio-scsi-pci-non-transitional", | |
| 98 | .instance_size = sizeof(VirtIOSCSIPCI), | |
| 99 | .instance_init = virtio_scsi_pci_instance_init, | |
| 100 | .class_init = virtio_scsi_pci_class_init, | |
| 101 | }; | |
| 102 | ||
| 103 | static void virtio_scsi_pci_register(void) | |
| 104 | { | |
| 105 | virtio_pci_types_register(&virtio_scsi_pci_info); | |
| 106 | } | |
| 107 | ||
| 108 | type_init(virtio_scsi_pci_register) |